Bug 52857 [spell checking] spell checking does not work for reused editors
3.0 M7 0. enable spell checking 1. set the editor preference to close editors automatically (allow only 1 editor) 2. open a CU with misspelled words in the Java editor ==> observe: spell check warnings appear 3. open another CU with misspelled words in the Java editor ==> observe: no spell check warnings
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/spelling/SpellReconcileStrategy.java
/*
		 * @see org.eclipse.jdt.core.compiler.IProblem#getSourceEnd()
		 */
		public final int getSourceEnd() {
			return fEnd;
		}
		/*
		 * @see org.eclipse.jdt.core.compiler.IProblem#getSourceLineNumber()
		 */
		public final int getSourceLineNumber() {
			return fLine;
		}
		/*
		 * @see org.eclipse.jdt.core.compiler.IProblem#getSourceStart()
		 */
		public final int getSourceStart() {
			return fStart;
		}
		/**
		 * Was the problem word found in the dictionary?
		 * 
		 * @return <code>true</code> iff the word was found, <code>false</code>
		 *               otherwise
		 */
		public final boolean isDictionaryMatch() {
			return fMatch;
		}
		/*
		 * @see org.eclipse.jdt.core.compiler.IProblem#isError()
		 */