Create rule S6937: Missing mandatory statement name (#3722)

rules/S6937/jcl/metadata.json

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+{
+  "title": "Missing mandatory statement name",
+  "type": "BUG",
+  "status": "ready",
+  "remediation": {
+    "func": "Constant\/Issue",
+    "constantCost": "2min"
+  },
+  "tags": [
+  ],
+  "defaultSeverity": "Major",
+  "ruleSpecification": "RSPEC-6937",
+  "sqKey": "S6937",
+  "scope": "All",
+  "defaultQualityProfiles": ["Sonar way"],
+  "quickfix": "unknown",
+  "code": {
+    "impacts": {
+      "RELIABILITY": "HIGH"
+    },
+    "attribute": "CONVENTIONAL"
+  }
+}

rules/S6937/jcl/rule.adoc

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+In-stream procedures should always have a name.
+
+== Why is this an issue?
+
+In JCL, it is expected for a PROC statement inside of a job stream to have a name.
+
+== How to fix it
+
+=== Code examples
+
+==== Noncompliant code example
+
+[source,jcl,diff-id=1,diff-type=noncompliant]
+----
+//MYJOB   JOB DXXX
+//        PROC
+//STEP1   EXEC PGM=MYPGM
+//        PEND
+----
+
+==== Compliant solution
+
+[source,jcl,diff-id=1,diff-type=compliant]
+----
+//MYJOB   JOB DXXX
+//TRPOC   PROC
+//STEP1   EXEC PGM=MYPGM
+//        PEND
+----
+
+== Resources
+
+=== Documentation
+
+* https://www.ibm.com/docs/en/zos/3.1.0?topic=d-name-field-8[IBM reference - PROC statement - Name field]

rules/S6937/metadata.json

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+{
+}