Fix #12978: false positive : Misra C 8.4: extern variables with structs (#6655)

Author: swasti16

addons/misra.py

@@ -2099,7 +2099,7 @@ def misra_8_4(self, cfg):
                 continue
             tok = var.nameToken
             if tok.next.str == ";":
-                if tok.next.isSplittedVarDeclEq or (tok.valueType and tok.valueType.type == "record"):
+                if tok.next.isSplittedVarDeclEq:
                     self.insert_in_dict(extern_var_with_def, tok.str, tok)
                 else:
                     self.insert_in_dict(extern_var_without_def, tok.str, tok)

addons/test/misra/misra-test.c

@@ -401,6 +401,8 @@ uint8_t misra_8_4_pressure = 101u; //8.4
 int32_t misra_8_4_ext_val2;
 int32_t misra_8_4_ext_val2 = 3; // compliant
 int32_t misra_8_4_ext_val4; //8.4
+// #12978
+const stError_t * m8_4_pubTestPointer; //compliant
 
 static int32_t misra_8_8 = 123;
 extern int32_t misra_8_8; // 8.8

addons/test/misra/misra-test.h

@@ -4,4 +4,10 @@ struct misra_h_s { int foo; };
 bool test(char *a); // OK
 int misra_8_2_no_fp(int a);
 void misra_8_4_bar(void);
+// #12978
+typedef struct m8_4_stErrorDef
+{
+    uint8_t ubReturnVal;
+} m8_4_stErrorDef;
+extern const m8_4_stErrorDef * m8_4_pubTestPointer;
 #endif // MISRA_TEST_H