Remove ECMA_TRY_CATCH macro (#3829)

also refactored the touched methods a little bit

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu

jerry-core/ecma/operations/ecma-try-catch-macro.h

@@ -18,41 +18,6 @@
 
 #include "ecma-helpers.h"
 
-/**
- * The macro defines try-block that initializes variable 'var' with 'op'
- * and checks for exceptions that might be thrown during initialization.
- *
- * If no exception was thrown, then code after the try-block is executed.
- * Otherwise, throw-completion value is just copied to return_value.
- *
- * Note:
- *      Each ECMA_TRY_CATCH should have it's own corresponding ECMA_FINALIZE
- *      statement with same argument as corresponding ECMA_TRY_CATCH's first argument.
- */
-#define ECMA_TRY_CATCH(var, op, return_value) \
-  JERRY_ASSERT (return_value == ECMA_VALUE_EMPTY); \
-  ecma_value_t var ## _completion = op; \
-  if (ECMA_IS_VALUE_ERROR (var ## _completion)) \
-  { \
-    return_value = var ## _completion; \
-  } \
-  else \
-  { \
-    ecma_value_t var = var ## _completion; \
-    JERRY_UNUSED (var);
-
-/**
- * The macro marks end of code block that is defined by corresponding
- * ECMA_TRY_CATCH and frees variable, initialized by the ECMA_TRY_CATCH.
- *
- * Note:
- *      Each ECMA_TRY_CATCH should be followed by ECMA_FINALIZE with same argument
- *      as corresponding ECMA_TRY_CATCH's first argument.
- */
-#define ECMA_FINALIZE(var) \
-    ecma_free_value (var ## _completion); \
-  }
-
 /**
  * The macro defines try-block that tries to perform ToNumber operation on given value
  * and checks for exceptions that might be thrown during the operation.