BaseStreamApiMigration: when deleting the initializer replace type with explicit if possible

Fixes IDEA-193618 Invalid code generated after "Can be replaced with 'collect' call"

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamApiMigration/java10/afterVarJava10.java

@@ -0,0 +1,12 @@
+// "Fix all 'Loop can be collapsed with Stream API' problems in file" "true"
+import java.util.*;
+import java.util.stream.Collectors;
+
+class Test {
+  public List<Integer> someMethod() {
+      ArrayList<Integer> listOfInteger;
+    Integer[] arrayOfInteger = {2, 4, 8};
+      listOfInteger = Arrays.stream(arrayOfInteger).filter(number -> number >= 4).collect(Collectors.toCollection(ArrayList::new));
+    return listOfInteger;
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamApiMigration/java10/beforeVarJava10.java

@@ -0,0 +1,15 @@
+// "Fix all 'Loop can be collapsed with Stream API' problems in file" "true"
+import java.util.*;
+
+class Test {
+  public List<Integer> someMethod() {
+    var listOfInteger = new ArrayList<Integer>();
+    Integer[] arrayOfInteger = {2, 4, 8};
+    f<caret>or (var number: arrayOfInteger) {
+      if (number >= 4) {
+        listOfInteger.add(number);
+      }
+    }
+    return listOfInteger;
+  }
+}