Java: fix error message article and make messages more consistent

GitOrigin-RevId: c2931396183059e4a1d8ade8e16e527153c60345

java/codeserver/highlighting/resources/messages/JavaCompilationErrorBundle.properties

@@ -14,7 +14,7 @@ annotation.not.allowed.var='var' type may not be annotated
 annotation.not.allowed.class=Class literal type may not be annotated
 annotation.not.allowed.ref=Annotation is not applicable to this kind of reference
 annotation.not.allowed.static=Static member qualifying type may not be annotated
-annotation.not.allowed.on.package=Package annotations should be in the package-info.java file
+annotation.not.allowed.on.package=Package annotations only allowed in a 'package-info.java' file
 annotation.not.allowed.in.permit.list=Annotations not allowed in 'permits' list
 annotation.type.expected=Annotation type expected
 annotation.missing.attribute={0} missing but required
@@ -528,7 +528,7 @@ catch.type.parameter=Cannot catch type parameters
 module.no.package=A module file should not have a 'package' statement
 module.conflicting.packages=Package ''{0}'' exists in another module: {1}
 module.conflicting.reads=Module ''{0}'' reads package ''{1}'' from both ''{2}'' and ''{3}''
-module.file.wrong.name=Module declaration should be in a file named 'module-info.java'
+module.file.wrong.name=Module declarations only allowed in a 'module-info.java' file
 module.file.duplicate='module-info.java' already exists in the module
 module.duplicate.requires=Duplicate ''requires'': {0}
 module.duplicate.exports=Duplicate ''exports'': {0}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/annotations/packageAnnotationNotInPackageInfo.java

@@ -1 +1 @@
-<error descr="Package annotations should be in the package-info.java file">@Deprecated</error> package annotations.packageAnnotationNotInPackageInfo; 
+<error descr="Package annotations only allowed in a 'package-info.java' file">@Deprecated</error> package annotations.packageAnnotationNotInPackageInfo;

java/java-tests/testSrc/com/intellij/java/codeInsight/daemon/ModuleHighlightingTest.kt

@@ -189,7 +189,7 @@ class ModuleHighlightingTest : LightJava9ModulesCodeInsightFixtureTestCase() {
   }
 
   fun testWrongFileName() {
-    highlight("M.java", """/* ... */ <error descr="Module declaration should be in a file named 'module-info.java'">module M</error> { }""")
+    highlight("M.java", """/* ... */ <error descr="Module declarations only allowed in a 'module-info.java' file">module M</error> { }""")
   }
 
   fun testFileDuplicate() {