Support argfiles in CLI with "@argfile"

#KT-24613 Fixed

compiler/testData/cli/js-dce/dceHelp.out

@@ -10,4 +10,5 @@ where possible options include:
   -nowarn                    Generate no warnings
   -verbose                   Enable verbose logging output
   -version                   Display compiler version
+  @<argfile>                 Expand compiler arguments from the given file, containing one argument or file path per line
 OK

compiler/testData/cli/js/jsHelp.out

@@ -31,4 +31,5 @@ where possible options include:
   -nowarn                    Generate no warnings
   -verbose                   Enable verbose logging output
   -version                   Display compiler version
+  @<argfile>                 Expand compiler arguments from the given file, containing one argument or file path per line
 OK

compiler/testData/cli/jvm/apiVersionLessThanLanguageUsingArgfile.args

@@ -1 +1 @@
--Xargfile=$TESTDATA_DIR$/apiVersionLessThanLanguage.argfile
+@$TESTDATA_DIR$/apiVersionLessThanLanguage.argfile

compiler/testData/cli/jvm/argfileWithEscaping.args

@@ -1 +1 @@
--Xargfile=$TESTDATA_DIR$/argfileWithEscaping.argfile
+@$TESTDATA_DIR$/argfileWithEscaping.argfile

compiler/testData/cli/jvm/argfileWithUnfinishedQuoteAndEscape.args

@@ -1 +1 @@
--Xargfile=$TESTDATA_DIR$/argfileWithUnfinishedQuoteAndEscape.argfile
+@$TESTDATA_DIR$/argfileWithUnfinishedQuoteAndEscape.argfile

compiler/testData/cli/jvm/help.out

@@ -29,4 +29,5 @@ where possible options include:
   -nowarn                    Generate no warnings
   -verbose                   Enable verbose logging output
   -version                   Display compiler version
+  @<argfile>                 Expand compiler arguments from the given file, containing one argument or file path per line
 OK

compiler/testData/cli/jvm/mixingArgfilesAndUsualArgs.args

@@ -1,3 +1,3 @@
 $TESTDATA_DIR$/apiVersion.kt
 -d
--Xargfile=$TESTDATA_DIR$/mixingArgfilesAndUsualArgs.argfile
+@$TESTDATA_DIR$/mixingArgfilesAndUsualArgs.argfile

compiler/testData/cli/jvm/nonexistingArgfile.args

@@ -1,4 +1,4 @@
 $TESTDATA_DIR$/simple.kt
 -d
 $TEMP_DIR$
--Xargfile=$TESTDATA_DIR$/nonexisting.argfile
+@$TESTDATA_DIR$/nonexisting.argfile