generics/A.java:
#    0| [CompilationUnit] A
#-----|   -1: (Imports)
#    3|     1: [ImportType] import HashMap
#    4|     2: [ImportType] import Map
#    6|   1: [Class,GenericType,ParameterizedType] A
#-----|     -2: (Generic Parameters)
#    6|       0: [TypeVariable] T
#    7|     2: [Class] B
#   10|   2: [Class] C
#   11|     3: [FieldDeclaration] A<String> f;
#   11|       -1: [TypeAccess] A<String>
#   11|         0: [TypeAccess] String
#   12|     4: [FieldDeclaration] A<String>.B<> b;
#   12|       -1: [TypeAccess] A<String>.B<>
#   12|         -1: [TypeAccess] A<String>
#   12|           0: [TypeAccess] String
#   13|     5: [FieldDeclaration] Map<String,Object> m;
#   13|       -1: [TypeAccess] Map<String,Object>
#   13|         0: [TypeAccess] String
#   13|         1: [TypeAccess] Object
#   13|       0: [ClassInstanceExpr] new HashMap<String,Object>(...)
#   13|         -3: [TypeAccess] HashMap<String,Object>
#   13|           0: [TypeAccess] String
#   13|           1: [TypeAccess] Object
#   16|   3: [Class,GenericType,ParameterizedType] D
#-----|     -2: (Generic Parameters)
#   16|       0: [TypeVariable] V
#   16|         0: [TypeAccess] Number
#   17|     3: [FieldDeclaration] D<?> d1;
#   17|       -1: [TypeAccess] D<?>
#   17|         0: [WildcardTypeAccess] ? ...
#   18|     4: [FieldDeclaration] D<? extends Object> d2;
#   18|       -1: [TypeAccess] D<? extends Object>
#   18|         0: [WildcardTypeAccess] ? ...
#   18|           0: [TypeAccess] Object
#   19|     5: [FieldDeclaration] D<? extends Float> d3;
#   19|       -1: [TypeAccess] D<? extends Float>
#   19|         0: [WildcardTypeAccess] ? ...
#   19|           0: [TypeAccess] Float
#   20|     6: [FieldDeclaration] D<? super Double> d4;
#   20|       -1: [TypeAccess] D<? super Double>
#   20|         0: [WildcardTypeAccess] ? ...
#   20|           1: [TypeAccess] Double
#   21|     7: [BlockStmt] { ... }
#   21|       0: [ExprStmt] <Expr>;
#   21|         0: [MethodCall] asList(...)
#   21|           -1: [TypeAccess] Arrays