MISRA C++ 2023: Rename StandardConversions library

These relate to the built-in type rules.

Author: lcartey

cpp/misra/src/codingstandards/cpp/misra/StandardConversions.qll renamed to cpp/misra/src/codingstandards/cpp/misra/BuiltInTypeRules.qll

@@ -1,3 +1,7 @@
+/**
+ * A library for utility classes related to the built-in type rules in MISRA C++ 2023 (Section 4.7.0).
+ */
+
 import cpp
 import codingstandards.cpp.misra
 import codingstandards.cpp.Type
@@ -54,7 +58,7 @@ TypeCategory getTypeCategory(BuiltInType t) {
 }
 
 /**
- * The signedness of a MISRA C++ 2023 numeric type
+ * The signedness of a MISRA C++ 2023 numeric type.
  */
 newtype Signedness =
   Signed() or

cpp/misra/src/rules/RULE-7-0-6/NumericAssignmentTypeMismatch.ql

@@ -16,7 +16,7 @@
 import cpp
 import codingstandards.cpp.misra
 import codingstandards.cpp.ConstantExpressions
-import codingstandards.cpp.misra.StandardConversions
+import codingstandards.cpp.misra.BuiltInTypeRules
 import semmle.code.cpp.rangeanalysis.SimpleRangeAnalysis
 
 predicate isValidConstantAssignment(IntegerConstantExpr source, NumericType targetType) {