Show lint diagnostics even if there're errors in the file (KT-12022)

It also affects working with KotlinChangeLocalityDetector. Right after error is fixed in local context file is still reported as having errors and diagnostics are not counted.

 #KT-12022 Fixed

ChangeLog.md

@@ -125,6 +125,12 @@ These artifacts include extensions for the types available in the latter JDKs, s
 
 - [`KT-13155`](https://youtrack.jetbrains.com/issue/KT-13155) Implement "Introduce Type Parameter" refactoring
 
+#### Android Lint
+
+###### Issues fixed
+
+- [`KT-12022`](https://youtrack.jetbrains.com/issue/KT-12022) Report lint warnings even when file contains errors
+
 ## 1.0.4
 
 ### Compiler

plugins/lint/lint-idea/src/org/jetbrains/android/inspections/klint/AndroidLintExternalAnnotator.java

@@ -62,6 +62,12 @@ import static com.android.tools.klint.detector.api.TextFormat.RAW;
 public class AndroidLintExternalAnnotator extends ExternalAnnotator<State, State> {
   static final boolean INCLUDE_IDEA_SUPPRESS_ACTIONS = false;
 
+  @Nullable
+  @Override
+  public State collectInformation(@NotNull PsiFile file, @NotNull Editor editor, boolean hasErrors) {
+    return collectInformation(file);
+  }
+
   @Override
   public State collectInformation(@NotNull PsiFile file) {
     final Module module = ModuleUtilCore.findModuleForPsiElement(file);

plugins/uast-kotlin/test/org/jetbrains/kotlin/uast/KotlinLintTestGenerated.java

@@ -119,6 +119,12 @@ public class KotlinLintTestGenerated extends AbstractKotlinLintTest {
         doTest(fileName);
     }
 
+    @TestMetadata("showDiagnosticsWhenFileIsRed.kt")
+    public void testShowDiagnosticsWhenFileIsRed() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("plugins/uast-kotlin/testData/lint/showDiagnosticsWhenFileIsRed.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("sqlite.kt")
     public void testSqlite() throws Exception {
         String fileName = KotlinTestUtils.navigationMetadata("plugins/uast-kotlin/testData/lint/sqlite.kt");

plugins/uast-kotlin/testData/lint/showDiagnosticsWhenFileIsRed.kt

@@ -0,0 +1,9 @@
+// INSPECTION_CLASS: org.jetbrains.android.inspections.klint.AndroidLintInspectionToolProvider$AndroidKLintSQLiteStringInspection
+
+import android.database.sqlite.SQLiteDatabase
+
+fun test(db: SQLiteDatabase) {
+    val <warning descr="[UNUSED_VARIABLE] Variable 'a' is never used">a</warning>: String = <error descr="[CONSTANT_EXPECTED_TYPE_MISMATCH] The integer literal does not conform to the expected type String">1</error>
+
+    db.<warning descr="Using column type STRING; did you mean to use TEXT? (STRING is a numeric type and its value can be adjusted; for example,strings that look like integers can drop leading zeroes. See issue explanation for details.)">execSQL("CREATE TABLE COMPANY(NAME STRING)")</warning>
+}