Bug 541705 - mute explicitlyClosedAutoCloseable errors

Set explicitlyClosedAutoCloseable compiler option to warning level and
added suppress warnings annotation to mute new warning.

Change-Id: If0ece9a44d976a27f7a70e8729b45f565a4bce21
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>

org.eclipse.debug.core/.settings/org.eclipse.jdt.core.prefs

diff --git a/org.eclipse.debug.core/.settings/org.eclipse.jdt.core.prefs b/org.eclipse.debug.core/.settings/org.eclipse.jdt.core.prefs
index 044bb4c..4b489c6 100644
--- a/org.eclipse.debug.core/.settings/org.eclipse.jdt.core.prefs
+++ b/org.eclipse.debug.core/.settings/org.eclipse.jdt.core.prefs
@@ -39,7 +39,7 @@
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=warning
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=error
+org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=warning
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=error
 org.eclipse.jdt.core.compiler.problem.fatalOptionalError=disabled
 org.eclipse.jdt.core.compiler.problem.fieldHiding=warning