IDEA-90860 Reformat Code breaks Copyright/Header

1. Block.getSpacing() contract is refined;
2. Java formatter tests don't strip line feeds and trailing spaces now;
3. Test data is corrected;

java/java-tests/testData/psi/formatter/java/2_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         foo(

java/java-tests/testData/psi/formatter/java/3_after.java

@@ -1,4 +1,3 @@
-
 public class A {
     private void foo() {
         Runnable a = new Runnable() {

java/java-tests/testData/psi/formatter/java/AlignAssignment_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         someVariable = x =

java/java-tests/testData/psi/formatter/java/AlignFor_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         for (int i = 0;

java/java-tests/testData/psi/formatter/java/AlignMultiLine_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     public void foo() {
         int someVariable = (y +

java/java-tests/testData/psi/formatter/java/AnonymousInner2_after.java

@@ -1,4 +1,3 @@
-
 class A {
     A IMPL = new A() {
         void f(boolean b) {

java/java-tests/testData/psi/formatter/java/AnonymousInnerClasses_after.java

@@ -1,4 +1,3 @@
-
 public class A {
     void f() {
         new My() {

java/java-tests/testData/psi/formatter/java/Assert_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         assert false;

java/java-tests/testData/psi/formatter/java/Blocks_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         if (a) {

java/java-tests/testData/psi/formatter/java/BreakInsideIf_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     public void a() {
         if (b) {

java/java-tests/testData/psi/formatter/java/CastInsideElse_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
   public void foo() {
     if (a) {

java/java-tests/testData/psi/formatter/java/Continue_after.java

@@ -1,4 +1,3 @@
-
 class A {
     void foo() {
         continue;

java/java-tests/testData/psi/formatter/java/ForEach_after.java

@@ -1,4 +1,3 @@
-
 class C {
     {
         for (String s : collection) {

java/java-tests/testData/psi/formatter/java/If.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         if (a) {

java/java-tests/testData/psi/formatter/java/IfBraces_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         if (a) {

java/java-tests/testData/psi/formatter/java/If_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         if (a)

java/java-tests/testData/psi/formatter/java/InnerClassAsParameter_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     public void foo() {
         bar_call(new Runnable() {

java/java-tests/testData/psi/formatter/java/JavaDoc_after.java

@@ -1,4 +1,3 @@
-
 public class Test {
     void anotherMethod(String s);
 

java/java-tests/testData/psi/formatter/java/MethodCallInAssignment_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         ClassBar bar =

java/java-tests/testData/psi/formatter/java/NullMethodParameter_after.java

@@ -1,4 +1,3 @@
-
 class C {
     public static final C1 ourC =
             new C2(new C3(),

java/java-tests/testData/psi/formatter/java/SCR114_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         try

java/java-tests/testData/psi/formatter/java/SCR260_after.java

@@ -1,4 +1,3 @@
-
 class TestFormat {
     public void test(boolean isA, boolean isB, boolean isC) {
         if (isA)

java/java-tests/testData/psi/formatter/java/SCR279_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         if (AAA == BBB ||

java/java-tests/testData/psi/formatter/java/SCR395_after.java

@@ -1,4 +1,3 @@
-
 public class Y implements X {
     public void doSomething() // this does something
     {

java/java-tests/testData/psi/formatter/java/SCR429_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
 
 

java/java-tests/testData/psi/formatter/java/SCR915_after.java

@@ -1,4 +1,3 @@
-
 class A {
     {
         y = x+++6;

java/java-tests/testData/psi/formatter/java/Switch_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         switch (a) {

java/java-tests/testData/psi/formatter/java/SynchronizedBlock_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     public void foo() {
         LOG.bar();

java/java-tests/testData/psi/formatter/java/TernaryExpression_DoNotAlign_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         int someVariable = a ?

java/java-tests/testData/psi/formatter/java/TernaryExpression_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     void foo() {
         int someVariable = a ?

java/java-tests/testData/psi/formatter/java/WrapAssertion_after.java

@@ -1,4 +1,3 @@
-
 class Foo {
     public void foo() {
         assertEquals(map.get(new File("C:\\PerforceTest1\\created2.txt")), );