add single static import: allow second single static import if it doesn't produce ambiguity or hiding of on-demand import (IDEA-155031)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/addOnDemandStaticImport/afterSingleImportDisabledWhenOnDemandExists1.java

@@ -0,0 +1,13 @@
+// "Add static import for 'test.Bar.f'" "true"
+package test;
+
+import static test.Bar.*;
+
+class Bar {
+    public static final void f() {}
+}
+public class Foo {
+    {
+        f();
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/addOnDemandStaticImport/afterSingleImportDisabledWhenSingleStaticOnAnotherReferenceWithWrongSignatureExists.java

@@ -0,0 +1,18 @@
+// "Add static import for 'test.Bar.f'" "true"
+package test;
+
+import static test.Bar.f;
+import static test.Bar1.f;
+
+class Bar {
+    public static final void f() {}
+}
+
+class Bar1 {
+    public static final void f(int i) {}
+}
+public class Foo {
+    {
+        f();
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/addOnDemandStaticImport/beforeSingleImportDisabledWhenOnDemandExists1.java

@@ -0,0 +1,13 @@
+// "Add static import for 'test.Bar.f'" "true"
+package test;
+
+import static test.Bar.*;
+
+class Bar {
+    public static final void f() {}
+}
+public class Foo {
+    {
+        Bar.<caret>f();
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/addOnDemandStaticImport/beforeSingleImportDisabledWhenSingleStaticOnAnotherReferenceExists.java

@@ -0,0 +1,17 @@
+// "Add static import for 'test.Bar.f'" "false"
+package test;
+
+import static test.Bar1.f;
+
+class Bar {
+    public static final void f() {}
+}
+
+class Bar1 {
+    public static final void f() {}
+}
+public class Foo {
+    {
+        Bar.<caret>f();
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/addOnDemandStaticImport/beforeSingleImportDisabledWhenSingleStaticOnAnotherReferenceWithWrongSignatureExists.java

@@ -0,0 +1,17 @@
+// "Add static import for 'test.Bar.f'" "true"
+package test;
+
+import static test.Bar1.f;
+
+class Bar {
+    public static final void f() {}
+}
+
+class Bar1 {
+    public static final void f(int i) {}
+}
+public class Foo {
+    {
+        Bar.<caret>f();
+    }
+}