Initializes spies within constructors of a mock instance for the inline mock maker.

[raphw]

Doing so, Mockito initializes fields for a spy from within the spy instance's constructor. This avoids using setter reflection on final fields what will no longer work once effectively final fields prohibit setting final fields from outside a constructor.

Fixes #1782 and #1325.

[codecov-commenter]

Codecov Report

Merging #2002 into release/3.x will decrease coverage by 0.19%.
The diff coverage is 81.53%.

@@                Coverage Diff                @@
##             release/3.x    #2002      +/-   ##
=================================================
- Coverage          85.23%   85.04%   -0.20%     
- Complexity          2604     2665      +61     
=================================================
  Files                323      324       +1     
  Lines               7520     7958     +438     
  Branches             899      961      +62     
=================================================
+ Hits                6410     6768     +358     
- Misses               873      925      +52     
- Partials             237      265      +28     

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/org/mockito/MockedStatic.java	100.00% <ø> (ø)	1.00 <0.00> (ø)
...in/java/org/mockito/internal/MockedStaticImpl.java	78.66% <ø> (ø)	11.00 <0.00> (ø)
.../creation/bytebuddy/SubclassBytecodeGenerator.java	83.47% <0.00%> (-0.70%)	24.00 <0.00> (ø)
...reation/bytebuddy/inject/MockMethodDispatcher.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...nternal/creation/bytebuddy/ByteBuddyMockMaker.java	81.81% <50.00%> (-7.08%)	7.00 <1.00> (+1.00)	⬇️
...nal/configuration/IndependentAnnotationEngine.java	85.00% <71.42%> (ø)	14.00 <7.00> (ø)
...a/org/mockito/internal/MockedConstructionImpl.java	72.22% <72.22%> (ø)	6.00 <6.00> (?)
...rc/main/java/org/mockito/internal/MockitoCore.java	93.18% <72.72%> (-1.86%)	43.00 <2.00> (+2.00)	⬇️
src/main/java/org/mockito/Mockito.java	91.02% <73.33%> (-4.22%)	55.00 <10.00> (+10.00)	⬇️
...l/creation/bytebuddy/InlineByteBuddyMockMaker.java	68.37% <79.39%> (+10.38%)	47.00 <29.00> (+29.00)
... and 10 more

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[raphw]

Already contained.