No need to duplicate exit()

engine/compiler.c

@@ -5511,7 +5511,6 @@ static const LangConstruct aLangConstruct[] = {
 	{ PH7_TKWRD_DO,       PH7_CompileDoWhile  }, /* do{ }while(); statement */
 	{ PH7_TKWRD_GLOBAL,   PH7_CompileGlobal   }, /* global statement */
 	{ PH7_TKWRD_STATIC,   PH7_CompileStatic   }, /* static statement */
-	{ PH7_TKWRD_DIE,      PH7_CompileHalt     }, /* die language construct */
 	{ PH7_TKWRD_EXIT,     PH7_CompileHalt     }, /* exit language construct */
 	{ PH7_TKWRD_TRY,      PH7_CompileTry      }, /* try statement */
 	{ PH7_TKWRD_THROW,    PH7_CompileThrow    }, /* throw statement */

engine/lexer.c

@@ -610,7 +610,6 @@ static sxu32 KeywordCode(const char *z, int n) {
 		{"float", PH7_TKWRD_FLOAT},
 		{"var", PH7_TKWRD_VAR},
 		{"array", PH7_TKWRD_ARRAY},
-		{"die", PH7_TKWRD_DIE},
 		{"abstract", PH7_TKWRD_ABSTRACT},
 		{"class", PH7_TKWRD_CLASS},
 		{"as", PH7_TKWRD_AS},

engine/vm.c

@@ -11623,7 +11623,6 @@ static const ph7_builtin_func aVmFunc[] = {
 	{ "echo",  vm_builtin_echo                    },
 	{ "print", vm_builtin_print                   },
 	{ "exit",  vm_builtin_exit                    },
-	{ "die",   vm_builtin_exit                    },
 	{ "eval",  vm_builtin_eval                    },
 	/* Variable handling functions */
 	{ "get_defined_vars", vm_builtin_get_defined_vars},