Analyzer memory usage reduction.

ILSpy/TreeNodes/Analyzer/AnalyzedFieldAccessNode.cs

@@ -90,6 +90,9 @@ namespace ICSharpCode.ILSpy.TreeNodes.Analyzer
 						}
 					}
 				}
+
+				method.Body = null;
+
 				if (found)
 					yield return new AnalyzedMethodTreeNode(method);
 			}

ILSpy/TreeNodes/Analyzer/AnalyzedMethodUsedByTreeNode.cs

@@ -86,6 +86,10 @@ namespace ICSharpCode.ILSpy.TreeNodes.Analyzer
 						break;
 					}
 				}
+
+
+				method.Body = null;
+
 				if (found)
 					yield return new AnalyzedMethodTreeNode(method);
 			}

ILSpy/TreeNodes/Analyzer/AnalyzedMethodUsesNode.cs

@@ -58,6 +58,7 @@ namespace ICSharpCode.ILSpy.TreeNodes.Analyzer
 			foreach (var m in GetUsedMethods().Distinct()) {
 				this.Children.Add(new AnalyzedMethodTreeNode(m));
 			}
+			analyzedMethod.Body = null;
 		}
 
 		IEnumerable<MethodDefinition> GetUsedMethods()

ILSpy/TreeNodes/Analyzer/AnalyzedTypeInstantiationsTreeNode.cs

@@ -99,6 +99,9 @@ namespace ICSharpCode.ILSpy.TreeNodes.Analyzer
 						}
 					}
 				}
+
+				method.Body = null;
+
 				if (found)
 					yield return new AnalyzedMethodTreeNode(method);
 			}