Eliminate ECMA_TRY_CATCH macros part I. (#3006)

Also this patch introduces several helper function to find/put/delete properties by indexed property names to reduce code duplications.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

jerry-core/ecma/base/ecma-globals.h

@@ -1250,6 +1250,14 @@ typedef enum
 #define ECMA_CREATE_DIRECT_STRING(type, value) \
   ((uintptr_t) (ECMA_TYPE_DIRECT_STRING | ((type) << ECMA_VALUE_SHIFT) | (value) << ECMA_DIRECT_STRING_SHIFT))
 
+/**
+ * Create an ecma direct string from the given number.
+ *
+ * Note: the given number must be less or equal than ECMA_DIRECT_STRING_MAX_IMM
+ */
+#define ECMA_CREATE_DIRECT_UINT32_STRING(uint32_number) \
+  ((ecma_string_t *) ECMA_CREATE_DIRECT_STRING (ECMA_DIRECT_STRING_UINT, (uintptr_t) uint32_number))
+
 /**
  * Checks whether the string is direct.
  */