fix: After 0.5.0 we can't consume the dot if not followed by digit

See ethereum/solidity#4172.

This unblocks parsing member access expressions where the primary
expression can't consume the dot in order to parse the `.member` postfix
expression.

crates/solidity/inputs/language/src/definition.rs

@@ -3692,6 +3692,21 @@ codegen_language_macros::compile!(Language(
                                         not_followed_by = Fragment(IdentifierStart)
                                     )
                                 ),
+                                // Since 0.5.0, only consume a dot if it's followed by a digit:
+                                TokenDefinition(
+                                    enabled = From("0.5.0"),
+                                    scanner = TrailingContext(
+                                        scanner = Sequence([
+                                            Fragment(DecimalDigits),
+                                            Optional(Sequence([
+                                                Atom("."),
+                                                Fragment(DecimalDigits)
+                                            ])),
+                                            Optional(Fragment(DecimalExponent))
+                                        ]),
+                                        not_followed_by = Fragment(IdentifierStart)
+                                    )
+                                ),
                                 // A dot and a fraction (without an integer) is enabled in all versions:
                                 TokenDefinition(
                                     scanner = TrailingContext(

crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/float_no_fraction/generated/0.5.0-failure.yml

@@ -5,13 +5,15 @@ Source: >
 
 Errors: # 1 total
   - >
-    Error: Expected DecimalLiteral.
-       ╭─[crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/float_no_fraction/input.sol:1:1]
+    Error: Expected DaysKeyword or EtherKeyword or FinneyKeyword or HoursKeyword or MinutesKeyword or SecondsKeyword or SzaboKeyword or WeeksKeyword or WeiKeyword.
+       ╭─[crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/float_no_fraction/input.sol:1:2]
        │
      1 │ 1.
-       │ ─┬  
+       │  ┬  
        │  ╰── Error occurred here.
     ───╯
 
 Tree:
-  - (SKIPPED): "1." # (0..2)
+  - (DecimalNumberExpression): # "1." (0..2)
+      - (literal꞉ DecimalLiteral): "1" # (0..1)
+      - (SKIPPED): "." # (1..2)

crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/float_no_fraction/generated/0.6.11-failure.yml

@@ -0,0 +1,19 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ 1.                                                                               │ 0..2
+
+Errors: # 1 total
+  - >
+    Error: Expected DaysKeyword or EtherKeyword or FinneyKeyword or GweiKeyword or HoursKeyword or MinutesKeyword or SecondsKeyword or SzaboKeyword or WeeksKeyword or WeiKeyword.
+       ╭─[crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/float_no_fraction/input.sol:1:2]
+       │
+     1 │ 1.
+       │  ┬  
+       │  ╰── Error occurred here.
+    ───╯
+
+Tree:
+  - (DecimalNumberExpression): # "1." (0..2)
+      - (literal꞉ DecimalLiteral): "1" # (0..1)
+      - (SKIPPED): "." # (1..2)

crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/float_no_fraction/generated/0.7.0-failure.yml

@@ -0,0 +1,19 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ 1.                                                                               │ 0..2
+
+Errors: # 1 total
+  - >
+    Error: Expected DaysKeyword or EtherKeyword or GweiKeyword or HoursKeyword or MinutesKeyword or SecondsKeyword or WeeksKeyword or WeiKeyword.
+       ╭─[crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/float_no_fraction/input.sol:1:2]
+       │
+     1 │ 1.
+       │  ┬  
+       │  ╰── Error occurred here.
+    ───╯
+
+Tree:
+  - (DecimalNumberExpression): # "1." (0..2)
+      - (literal꞉ DecimalLiteral): "1" # (0..1)
+      - (SKIPPED): "." # (1..2)

crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/integer_ident_after_period/generated/0.5.0-failure.yml

@@ -0,0 +1,19 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ 1.a                                                                              │ 0..3
+
+Errors: # 1 total
+  - >
+    Error: Expected DaysKeyword or EtherKeyword or FinneyKeyword or HoursKeyword or MinutesKeyword or SecondsKeyword or SzaboKeyword or WeeksKeyword or WeiKeyword.
+       ╭─[crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/integer_ident_after_period/input.sol:1:2]
+       │
+     1 │ 1.a
+       │  ─┬─  
+       │   ╰─── Error occurred here.
+    ───╯
+
+Tree:
+  - (DecimalNumberExpression): # "1.a\n" (0..4)
+      - (literal꞉ DecimalLiteral): "1" # (0..1)
+      - (SKIPPED): ".a\n" # (1..4)

crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/integer_ident_after_period/generated/0.6.11-failure.yml

@@ -0,0 +1,19 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ 1.a                                                                              │ 0..3
+
+Errors: # 1 total
+  - >
+    Error: Expected DaysKeyword or EtherKeyword or FinneyKeyword or GweiKeyword or HoursKeyword or MinutesKeyword or SecondsKeyword or SzaboKeyword or WeeksKeyword or WeiKeyword.
+       ╭─[crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/integer_ident_after_period/input.sol:1:2]
+       │
+     1 │ 1.a
+       │  ─┬─  
+       │   ╰─── Error occurred here.
+    ───╯
+
+Tree:
+  - (DecimalNumberExpression): # "1.a\n" (0..4)
+      - (literal꞉ DecimalLiteral): "1" # (0..1)
+      - (SKIPPED): ".a\n" # (1..4)

crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/integer_ident_after_period/generated/0.7.0-failure.yml

@@ -0,0 +1,19 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ 1.a                                                                              │ 0..3
+
+Errors: # 1 total
+  - >
+    Error: Expected DaysKeyword or EtherKeyword or GweiKeyword or HoursKeyword or MinutesKeyword or SecondsKeyword or WeeksKeyword or WeiKeyword.
+       ╭─[crates/solidity/testing/snapshots/cst_output/DecimalNumberExpression/integer_ident_after_period/input.sol:1:2]
+       │
+     1 │ 1.a
+       │  ─┬─  
+       │   ╰─── Error occurred here.
+    ───╯
+
+Tree:
+  - (DecimalNumberExpression): # "1.a\n" (0..4)
+      - (literal꞉ DecimalLiteral): "1" # (0..1)
+      - (SKIPPED): ".a\n" # (1..4)

crates/solidity/testing/snapshots/cst_output/Expression/member_access_integer/generated/0.5.0-success.yml

@@ -0,0 +1,18 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ 5.fromUint()                                                                     │ 0..12
+
+Errors: []
+
+Tree:
+  - (Expression) ► (variant꞉ FunctionCallExpression): # "5.fromUint()\n" (0..13)
+      - (operand꞉ Expression) ► (variant꞉ MemberAccessExpression): # "5.fromUint" (0..10)
+          - (operand꞉ Expression) ► (variant꞉ DecimalNumberExpression) ► (literal꞉ DecimalLiteral): "5" # (0..1)
+          - (period꞉ Period): "." # (1..2)
+          - (member꞉ MemberAccess) ► (variant꞉ Identifier): "fromUint" # (2..10)
+      - (arguments꞉ ArgumentsDeclaration) ► (variant꞉ PositionalArgumentsDeclaration): # "()\n" (10..13)
+          - (open_paren꞉ OpenParen): "(" # (10..11)
+          - (arguments꞉ PositionalArguments): [] # (11..11)
+          - (close_paren꞉ CloseParen): ")" # (11..12)
+          - (trailing_trivia꞉ EndOfLine): "\n" # (12..13)