Partial fix for #10358: set value for int s = int(4); (#3523)

Author: chrchr-github

test/testastutils.cpp

@@ -241,6 +241,12 @@ class TestAstUtils : public TestFixture {
         inconclusive = false;
         ASSERT_EQUALS(false, isVariableChangedByFunctionCall(code, "x ) ;", &inconclusive));
         ASSERT_EQUALS(true, inconclusive);
+
+        code = "int f(int x) {\n"
+               "return int(x);\n"
+               "}\n";
+        ASSERT_EQUALS(false, isVariableChangedByFunctionCall(code, "x ) ;", &inconclusive));
+        TODO_ASSERT_EQUALS(false, true, inconclusive);
     }
 
     bool nextAfterAstRightmostLeaf(const char code[], const char parentPattern[], const char rightPattern[]) {

test/testvalueflow.cpp

@@ -4402,6 +4402,22 @@ class TestValueFlow : public TestFixture {
         ASSERT(value.isKnown());
         ASSERT_EQUALS(1, value.intvalue);
 
+        code = "bool f() {\n"
+               "  const int s = int( 4 );"
+               "  return s == 4;\n" // <- known value
+               "}";
+        value = valueOfTok(code, "==");
+        ASSERT(value.isKnown());
+        ASSERT_EQUALS(1, value.intvalue);
+
+        code = "bool f() {\n"
+               "  const int s = int{ 4 };"
+               "  return s == 4;\n" // <- known value
+               "}";
+        value = valueOfTok(code, "==");
+        ASSERT(value.isKnown());
+        ASSERT_EQUALS(1, value.intvalue);
+
         // calculation with known result
         code = "int f(int x) { a = x & 0; }"; // <- & is 0
         value = valueOfTok(code, "&");