HighlightUtil: suggest fix for cases when method has void return type and return statement value type is unknown (IDEA-216279)

GitOrigin-RevId: 2af7ce37a427c8ec6f5175fc820ec0eecbf719c9

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/afterKnownTypeLastStatement.java

@@ -0,0 +1,7 @@
+// "Delete return statement" "true"
+
+class Test {
+
+  void foo(boolean b) {
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/afterKnownTypeUsefulReturn.java

@@ -0,0 +1,9 @@
+// "Delete return value '"foo"'" "true"
+
+class Test {
+
+  void foo(boolean b) {
+    if (b) return;
+    System.out.println("bar");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/afterUnknownTypeLastStatement.java

@@ -0,0 +1,7 @@
+// "Delete return statement" "true"
+
+class Test {
+
+  void foo(boolean b) {
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/afterUnknownTypeUsefulReturn.java

@@ -0,0 +1,9 @@
+// "Delete return value 'null'" "true"
+
+class Test {
+
+  void foo(boolean b) {
+    if (b) return;
+    System.out.println("bar");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/beforeKnownTypeLastStatement.java

@@ -0,0 +1,8 @@
+// "Delete return statement" "true"
+
+class Test {
+
+  void foo(boolean b) {
+    return<caret> "foo";
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/beforeKnownTypeLastStatementSideEffects.java

@@ -0,0 +1,12 @@
+// "Delete return statement" "false"
+
+class Test {
+
+  void foo(boolean b) {
+    return<caret> getWithSideEffects();
+  }
+
+  private String getWithSideEffects() {
+    System.out.println("baz");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/beforeKnownTypeUsefulReturn.java

@@ -0,0 +1,9 @@
+// "Delete return value '"foo"'" "true"
+
+class Test {
+
+  void foo(boolean b) {
+    if (b) return<caret> "foo";
+    System.out.println("bar");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/beforeKnownTypeUsefulReturnSideEffects.java

@@ -0,0 +1,13 @@
+// "Delete return statement" "false"
+
+class Test {
+
+  void foo(boolean b) {
+      if (b) return<caret> getWithSideEffects();
+      System.out.println("bar");
+  }
+
+  private String getWithSideEffects() {
+    System.out.println("baz");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/beforeUnknownTypeLastStatement.java

@@ -0,0 +1,8 @@
+// "Delete return statement" "true"
+
+class Test {
+
+  void foo(boolean b) {
+    return<caret> null;
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteReturn/beforeUnknownTypeUsefulReturn.java

@@ -0,0 +1,9 @@
+// "Delete return value 'null'" "true"
+
+class Test {
+
+  void foo(boolean b) {
+    if (b) return<caret> null;
+    System.out.println("bar");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/afterUknownTypeReturnFromVoid.java

@@ -0,0 +1,8 @@
+// "Change return type for method 'foo'" "true"
+
+class Test {
+
+  <caret><selection>void</selection> foo() {
+    return null;
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/beforeUknownTypeReturnFromVoid.java

@@ -0,0 +1,8 @@
+// "Change return type for method 'foo'" "true"
+
+class Test {
+
+  void foo() {
+    return <caret>null;
+  }
+}