simplify copy c'tor

src/shared/proparser/profileparser.h

@@ -81,9 +81,7 @@ public:
 private:
     struct BlockScope {
         BlockScope() : start(0), braceLevel(0), special(false), inBranch(false) {}
-        BlockScope(BlockScope &other) :
-                start(other.start), braceLevel(other.braceLevel),
-                special(other.special), inBranch(other.inBranch) {}
+        BlockScope(const BlockScope &other) { *this = other; }
         ushort *start; // Where this block started; store length here
         int braceLevel; // Nesting of braces in scope
         bool special; // Single-line conditionals inside loops, etc. cannot have else branches