Core.Tests: add tests for function names rules

Specifically for NestedFunctionNames and UnnestedFunctionNames
rules. Added test cases make sure the rule doesn't fire on
bindings that are not functions.

Author: webwarrior-ws

tests/FSharpLint.Core.Tests/Rules/Conventions/Naming/NestedFunctionNames.fs

@@ -108,3 +108,14 @@ module Program =
 """
 
         this.AssertNoWarnings()
+
+    [<Test>]
+    member this.``Bindings that are not functions should not cause errors``() =
+        this.Parse """
+module Program =
+    let OuterFunction () =
+        let BLUE_STATE = "blue"
+        ()
+"""
+
+        this.AssertNoWarnings()

tests/FSharpLint.Core.Tests/Rules/Conventions/Naming/UnnestedFunctionNames.fs

@@ -199,3 +199,12 @@ module Program =
 """
 
         Assert.IsTrue(this.ErrorExistsAt(8, 8))
+
+    [<Test>]
+    member this.``Bindings that are not functions should not cause errors``() =
+        this.Parse """
+module Program =
+    let BLUE_STATE = "blue"
+"""
+
+        this.AssertNoWarnings()