Java: Convert intention "Join Declaration And Assignment" into inspection (IDEA-178919)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/afterAnnotated.java

@@ -0,0 +1,10 @@
+// "Join declaration and assignment" "GENERIC_ERROR_OR_WARNING"
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+class C {
+    void foo() {
+        @A int n = 1;
+    }
+    @Target(ElementType.LOCAL_VARIABLE) @interface A {}
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/afterComment.java

@@ -1,8 +1,13 @@
 // "Join declaration and assignment" "GENERIC_ERROR_OR_WARNING"
 class Test {
-  {
-    String ss = "hello"; // comment A
-    // comment B
-    /*comment C*/ /*comment D*/ // comment E
-  }
+    {
+        /*comment 1*/
+        /*comment 2*/
+        /*comment 3*/
+        // comment 4
+        // comment A
+        /*comment B*/
+        /*comment C*/
+        String ss = "hello" + /*comment D*/ " world";/*comment E*/// comment F
+    }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/afterEq.java

@@ -1,6 +1,6 @@
 // "Join declaration and assignment" "GENERIC_ERROR_OR_WARNING"
 class Test {
   {
-    String ss = "hello";
+      String ss = "hello";
   }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/afterMultiDeclr.java

@@ -1,6 +1,7 @@
 // "Join declaration and assignment" "GENERIC_ERROR_OR_WARNING"
 class Test {
   {
-    String ss = "hello", a = "";
+    String a = "";
+      String ss = "hello";
   }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/afterParenthesis.java

@@ -1,6 +1,6 @@
 // "Join declaration and assignment" "INFORMATION"
 class Test {
   {
-    int i = 4 * (2 + 3);
+      int i = 4 * (2 + 3);
   }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/afterPlusEq.java

@@ -1,6 +1,6 @@
 // "Join declaration and assignment" "INFORMATION"
 class Test {
   {
-    String ss = "hello" + "world";
+      String ss = "hello" + "world";
   }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/afterTwoAnnotations.java

@@ -0,0 +1,12 @@
+// "Join declaration and assignment" "GENERIC_ERROR_OR_WARNING"
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+class C {
+    void foo() {
+        @A @B int k, m;
+        @A @B int n = 1;
+    }
+    @Target(ElementType.LOCAL_VARIABLE) @interface A {}
+    @Target(ElementType.LOCAL_VARIABLE) @interface B {}
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/afterUpdateChain.java

@@ -0,0 +1,8 @@
+// "Join declaration and assignment" "INFORMATION"
+class C {
+    int foo (int a, int b){
+        int x = a;
+        x = x * 31 + b;
+        return x;
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/beforeAnnotated.java

@@ -0,0 +1,11 @@
+// "Join declaration and assignment" "GENERIC_ERROR_OR_WARNING"
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+class C {
+    void foo() {
+        @A int n;
+        <caret>n = 1;
+    }
+    @Target(ElementType.LOCAL_VARIABLE) @interface A {}
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/beforeComment.java

@@ -1,8 +1,8 @@
 // "Join declaration and assignment" "GENERIC_ERROR_OR_WARNING"
 class Test {
-  {
-    String s<caret>s = ""; // comment A
-    // comment B
-    /*comment C*/ ss /*comment D*/ = "hello"; // comment E
-  }
+    {
+        String /*comment 1*/ s<caret>s /*comment 2*/ = "" /*comment 3*/; // comment 4
+        // comment A
+        /*comment B*/ ss /*comment C*/ = "hello" + /*comment D*/ " world" /*comment E*/; // comment F
+    }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/beforeTwoAnnotations.java

@@ -0,0 +1,12 @@
+// "Join declaration and assignment" "GENERIC_ERROR_OR_WARNING"
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+class C {
+    void foo() {
+        @A @B int k, n, m;
+        <caret>n = 1;
+    }
+    @Target(ElementType.LOCAL_VARIABLE) @interface A {}
+    @Target(ElementType.LOCAL_VARIABLE) @interface B {}
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/joinDeclaration/beforeUpdateChain.java

@@ -0,0 +1,9 @@
+// "Join declaration and assignment" "INFORMATION"
+class C {
+    int foo (int a, int b){
+        int x;
+        <caret>x = a;
+        x = x * 31 + b;
+        return x;
+    }
+}