Remove obsolete packrat parser implementation

Signed-off-by: Sebastian Zarnekow <sebastian.zarnekow@gmail.com>

org.eclipse.xtend.ide.swtbot.tests/.settings/org.eclipse.xtend.core.Xtend.prefs

@@ -1,3 +1,8 @@
+//outlet.DEFAULT_OUTPUT.sourceFolder.src/main/java.directory=swtbot/xtend-gen
+//outlet.DEFAULT_OUTPUT.sourceFolder.swtbot/src.directory=swtbot/xtend-gen
+//outlet.DEFAULT_OUTPUT.sourceFolder.swtbot/src.ignore=false
+//outlet.DEFAULT_OUTPUT.sourceFolder.swtbot/xtend-gen.ignore=true
+BuilderConfiguration.is_project_specific=true
 eclipse.preferences.version=1
 is_project_specific=true
 org.eclipse.xtend.core.validation.IssueCodes.dispatch_plain_function_name_clash=warning
@@ -9,3 +14,9 @@ org.eclipse.xtext.xbase.validation.IssueCodes.import_unsued=org.eclipse.jdt.core
 org.eclipse.xtext.xbase.validation.IssueCodes.import_wildcard_deprecated=warning
 org.eclipse.xtext.xbase.validation.IssueCodes.obsolete_instanceof=org.eclipse.jdt.core.compiler.problem.unnecessaryTypeCheck\:warning
 org.eclipse.xtext.xbase.validation.IssueCodes.unused_local_variable=org.eclipse.jdt.core.compiler.problem.unusedLocal\:warning
+outlet.DEFAULT_OUTPUT.createDirectory=false
+outlet.DEFAULT_OUTPUT.directory=./xtend-gen
+outlet.DEFAULT_OUTPUT.hideLocalSyntheticVariables=true
+outlet.DEFAULT_OUTPUT.installDslAsPrimarySource=false
+outlet.DEFAULT_OUTPUT.sourceFolder.xtend-gen.ignore=true
+outlet.DEFAULT_OUTPUT.userOutputPerSourceFolder=true

org.eclipse.xtext.xtext.generator/src/org/eclipse/xtext/xtext/generator/parser/antlr/AbstractAntlrGeneratorFragment2.java

@@ -94,7 +94,7 @@ public void checkConfiguration(Issues issues) {
 		super.checkConfiguration(issues);
 		if (!antlrTool.isWorkable()) {
 			issues.addError(
-					"\n\n*ATTENTION*\nIt is highly recommended to use ANTLR's parser generator (get it from 'http://xtext.itemis.com/'). \nAs an alternative to ANTLR you could also use the alternative implementation shipped with Xtext.\nTo do so use the generator fragment 'org.eclipse.xtext.generator.parser.packrat.PackratParserFragment' in your mwe2 file instead.");
+					"\n\n*ATTENTION*\nIt is required to use ANTLR's parser generator (get it from 'https://download.itemis.com/antlr-generator-3.2.0-patch.jar').");
 		}
 	}
 

org.eclipse.xtext/.classpath

@@ -8,7 +8,6 @@
 			<attribute name="ignore_optional_problems" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="src" path="packrat"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>

org.eclipse.xtext/META-INF/MANIFEST.MF

@@ -19,8 +19,6 @@ Export-Package: org.eclipse.xtext;version="2.35.0",
    org.eclipse.xtext.builder.standalone,
    org.eclipse.xtend.performance.tests",
  org.eclipse.xtext.common;version="2.35.0",
- org.eclipse.xtext.common.parser.packrat;version="2.35.0";x-internal:=true,
- org.eclipse.xtext.common.parser.packrat.consumers;version="2.35.0";x-internal:=true,
  org.eclipse.xtext.common.services;version="2.35.0",
  org.eclipse.xtext.conversion;version="2.35.0",
  org.eclipse.xtext.conversion.impl;version="2.35.0",
@@ -106,12 +104,6 @@ Export-Package: org.eclipse.xtext;version="2.35.0",
  org.eclipse.xtext.parser.antlr;version="2.35.0",
  org.eclipse.xtext.parser.antlr.internal;version="2.35.0";x-friends:="org.eclipse.xtext.ui.tests",
  org.eclipse.xtext.parser.impl;version="2.35.0",
- org.eclipse.xtext.parser.packrat;version="2.35.0";x-internal:=true,
- org.eclipse.xtext.parser.packrat.consumers;version="2.35.0";x-internal:=true,
- org.eclipse.xtext.parser.packrat.debug;version="2.35.0";x-internal:=true,
- org.eclipse.xtext.parser.packrat.internal;version="2.35.0";x-internal:=true,
- org.eclipse.xtext.parser.packrat.matching;version="2.35.0";x-internal:=true,
- org.eclipse.xtext.parser.packrat.tokens;version="2.35.0";x-internal:=true,
  org.eclipse.xtext.parsetree.reconstr;version="2.35.0",
  org.eclipse.xtext.parsetree.reconstr.impl;version="2.35.0",
  org.eclipse.xtext.preferences;version="2.35.0",

org.eclipse.xtext/build.properties

@@ -11,6 +11,5 @@ bin.includes = .,\
                org/
 source.. = src-gen,\
            emf-gen,\
-           packrat,\
            src
 src.includes = about.html