Fix #12298: false positive: misra-c2012-9.3 (#5812)

Author: swasti16

addons/misra_9.py

@@ -311,8 +311,7 @@ def parseInitializer(self, root, token):
                 if self.ed and self.ed.isValue:
                     if not isDesignated and len(self.rootStack) > 0 and self.rootStack[-1][1] == self.root:
                         self.rootStack[-1][0].markStuctureViolation(self.token)
-
-                    if isFirstElement and self.token.str == '0' and self.token.next.str == '}':
+                    if isFirstElement and self.token.isInt and self.token.getKnownIntValue() == 0 and self.token.next.str == '}':
                         # Zero initializer causes recursive initialization
                         self.root.initializeChildren()
                     elif self.token.isString and self.ed.valueType and self.ed.valueType.pointer > 0:

addons/test/misra/misra-test.c

@@ -441,6 +441,7 @@ static void misra_9_empty_or_zero_initializers(void) {
     int e[2][2] = { { 1 , 2 }, {} };           // 9.2
 
     int f[5]    = { 0 };
+    int f1[5]   = { 0u };                     // no-warning  #11298
     int g[5][2] = { 0 };
     int h[2][2] = { { 0 } };                   // 9.3
     int i[2][2] = { { 0 }, { 0 } };