callstack: Fix CompositeHostModel exit de-register

Before this change, upon Trace Compass Eclipse application exit, there
was a "Resource leak" error in Console, about CompositeHostModel not
having been deregistered.

Dispose then for every InstrumentedCallStackAnalysis subclass, this way.

Add missing blank line at beginning of InstrumentedCallStackAnalysis for
consistency with sibling files, while there.

Change-Id: I5fbc1364d4e504417654fa796af356dad8ca42a8
Signed-off-by: Marco Miller <marco.miller@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/org.eclipse.tracecompass/+/199659
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Tested-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Reviewed-by: Bernd Hufmann <bernd.hufmann@ericsson.com>

analysis/org.eclipse.tracecompass.analysis.callstack.core/src/org/eclipse/tracecompass/internal/analysis/callstack/core/instrumented/InstrumentedCallStackAnalysis.java

@@ -8,6 +8,7 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *******************************************************************************/
+
 package org.eclipse.tracecompass.internal.analysis.callstack.core.instrumented;
 
 import java.util.ArrayList;
@@ -30,6 +31,7 @@
 import org.eclipse.tracecompass.internal.analysis.callstack.core.callgraph.CallGraph;
 import org.eclipse.tracecompass.internal.analysis.callstack.core.callgraph.CallGraphAnalysis;
 import org.eclipse.tracecompass.internal.analysis.callstack.core.callgraph.ICallGraphProvider;
+import org.eclipse.tracecompass.internal.analysis.callstack.core.model.ModelManager;
 import org.eclipse.tracecompass.internal.analysis.callstack.core.tree.IWeightedTreeGroupDescriptor;
 import org.eclipse.tracecompass.segmentstore.core.ISegment;
 import org.eclipse.tracecompass.segmentstore.core.ISegmentStore;
@@ -249,6 +251,7 @@ public String getTitle() {
     public void dispose() {
         super.dispose();
         fCallGraph.dispose();
+        ModelManager.disposeModels();
     }
 
     @Override