Rule 2.6: Address compiler syntax errors

Labels cannot be before declarations, only before expressions or
statements.

Author: lcartey

c/misra/test/rules/RULE-2-6/test.c

@@ -1,12 +1,12 @@
 void test1(int p1) {
 dead_label_1: // NON_COMPLIANT
 live_label_1: // COMPLIANT
-  int x = 0;
+  p1 + 1;
 live_label_2: // COMPLIANT
 dead_label_2: // NON_COMPLIANT
-  int y = 0;
+  p1 + 2;
 dead_label_3: // NON_COMPLIANT
-  int z = 0;
+  p1 + 3;
 
   if (p1 > 1) {
     goto live_label_1;