Fixed #9505 (MISRA 20.7 check suggests code change that leads to invalid code)

Author: danmar

addons/misra.py

@@ -1857,12 +1857,12 @@ def misra_20_7(self, data):
 
                     while pos1 >= 0 and exp[pos1] == ' ':
                         pos1 -= 1
-                    if exp[pos1] not in '([#':
+                    if exp[pos1] not in '([#,':
                         self.reportError(directive, 20, 7)
                         break
                     while pos2 < len(exp) and exp[pos2] == ' ':
                         pos2 += 1
-                    if pos2 < len(exp) and exp[pos2] not in ')]#':
+                    if pos2 < len(exp) and exp[pos2] not in ')]#,':
                         self.reportError(directive, 20, 7)
                         break
 

addons/test/misra/misra-test.c

@@ -755,6 +755,7 @@ union misra_19_2 { }; // 19.2
 #define M_20_7_2(A,B)  (1+AB+2) // no warning
 #define M_20_7_3(A)  ((A)+A) // 20.7
 #define M_20_7_4(A)  x##A // 20.10 this test was written to see there are not FPs
+#define M_20_7_5(A,B)  f(A, B) // no warning
 
 #define M_20_10(a) (#a) // 20.10