renamed "isArgumentsObject" to "is_arguments_object"

javascript/extractor/tests/esnext/output/trap/async-generators.js.trap

@@ -204,7 +204,7 @@ scopenodes(#20069,#20072)
 scopenesting(#20072,#20000)
 #20073=@"var;{arguments};{#20072}"
 variables(#20073,"arguments",#20072)
-isArgumentsObject(#20073)
+is_arguments_object(#20073)
 isGenerator(#20069)
 isAsync(#20069)
 #20074=*
@@ -233,7 +233,7 @@ scopenesting(#20079,#20000)
 variables(#20080,"x",#20079)
 #20081=@"var;{arguments};{#20079}"
 variables(#20081,"arguments",#20079)
-isArgumentsObject(#20081)
+is_arguments_object(#20081)
 isAsync(#20076)
 #20082=*
 stmts(#20082,1,#20076,-2,"{\n  for ... o());\n}")

javascript/extractor/tests/esnext/output/trap/fields.js.trap

@@ -290,7 +290,7 @@ scopenodes(#20092,#20099)
 scopenesting(#20099,#20089)
 #20100=@"var;{arguments};{#20099}"
 variables(#20100,"arguments",#20099)
-isArgumentsObject(#20100)
+is_arguments_object(#20100)
 #20101=*
 stmts(#20101,1,#20092,-2,"{}")
 hasLocation(#20101,#20097)
@@ -376,7 +376,7 @@ literals("args","args",#20120)
 decl(#20120,#20119)
 #20121=@"var;{arguments};{#20118}"
 variables(#20121,"arguments",#20118)
-isArgumentsObject(#20121)
+is_arguments_object(#20121)
 hasRestParameter(#20109)
 #20122=*
 stmts(#20122,1,#20109,-2,"{ super(...args); }")
@@ -459,7 +459,7 @@ scopenodes(#20134,#20139)
 scopenesting(#20139,#20131)
 #20140=@"var;{arguments};{#20139}"
 variables(#20140,"arguments",#20139)
-isArgumentsObject(#20140)
+is_arguments_object(#20140)
 #20141=*
 stmts(#20141,1,#20134,-2,"{}")
 hasLocation(#20141,#20137)

javascript/extractor/tests/esnext/output/trap/yield-import.js.trap

@@ -116,7 +116,7 @@ scopenodes(#20035,#20038)
 scopenesting(#20038,#20000)
 #20039=@"var;{arguments};{#20038}"
 variables(#20039,"arguments",#20038)
-isArgumentsObject(#20039)
+is_arguments_object(#20039)
 isGenerator(#20035)
 #20040=*
 stmts(#20040,1,#20035,-2,"{\n  yie ... foo"")\n}")