[antlr] Add default antlr params to the beginning of the list

Other fragments may make assumptions about the params that they add
dynamically, e.g. that they are at the end of the list

see https://bugs.eclipse.org/bugs/show_bug.cgi?id=453732

Change-Id: I3eaec23a8412bccccc97a3307bd1aaaa797cd954

tests/org.eclipse.xtext.tests/src/org/eclipse/xtext/lexer/IgnoreCaseLexerTestLanguage.mwe2

@@ -18,6 +18,7 @@ var lineDelimiter = '\n'
 
 Workflow {
 	bean = StandaloneSetup {
+		ignoreBrokenProjectFiles = true
 		platformUri = "${runtimeProject}/.."
 	}
 	

tests/org.eclipse.xtext.tests/src/org/eclipse/xtext/parser/unorderedGroups/GenerateUnorderedGroupsTestLanguages.mwe2

@@ -18,6 +18,7 @@ var lineDelimiter = '\n'
 
 Workflow {
 	bean = StandaloneSetup {
+		ignoreBrokenProjectFiles = true
 		platformUri = "${runtimeProject}/../.."
 	}