Improve duplicate clinit removal - #10383

[checkstyle] reported by reviewdog 🐶 'junit.framework.TestCase' should be separated from previous imports. Raw Output: /home/runner/work/gwt/gwt/gwt/dev/core/test/com/google/gwt/dev/js/OptimizerTestBase.java:26:1: warning: 'junit.framework.TestCase' should be separated from previous imports. (com.puppycrawl.tools.checkstyle.checks.imports.ImportOrderCheck)

[checkstyle] reported by reviewdog 🐶 Extra separation in import group before 'com.google.gwt.thirdparty.guava.common.base.Joiner' Raw Output: /home/runner/work/gwt/gwt/gwt/dev/core/test/com/google/gwt/dev/js/OptimizerTestBase.java:25:1: warning: Extra separation in import group before 'com.google.gwt.thirdparty.guava.common.base.Joiner' (com.puppycrawl.tools.checkstyle.checks.imports.ImportOrderCheck)

[checkstyle] reported by reviewdog 🐶 Line matches the illegal pattern 'more than one blank line'. Raw Output: /home/runner/work/gwt/gwt/gwt/dev/core/test/com/google/gwt/dev/js/JsStaticEvalTest.java:155:0: info: Line matches the illegal pattern 'more than one blank line'. (com.puppycrawl.tools.checkstyle.checks.regexp.RegexpCheck)

[checkstyle] reported by reviewdog 🐶 Line matches the illegal pattern 'more than one blank line'. Raw Output: /home/runner/work/gwt/gwt/gwt/dev/core/test/com/google/gwt/dev/js/JsDuplicateFunctionRemoverTest.java:77:0: info: Line matches the illegal pattern 'more than one blank line'. (com.puppycrawl.tools.checkstyle.checks.regexp.RegexpCheck)

[checkstyle] reported by reviewdog 🐶 Line matches the illegal pattern 'more than one blank line'. Raw Output: /home/runner/work/gwt/gwt/gwt/dev/core/test/com/google/gwt/dev/js/JsDuplicateFunctionRemoverTest.java:33:0: info: Line matches the illegal pattern 'more than one blank line'. (com.puppycrawl.tools.checkstyle.checks.regexp.RegexpCheck)

[checkstyle] reported by reviewdog 🐶 Line is longer than 100 characters (found 101). Raw Output: /home/runner/work/gwt/gwt/gwt/dev/core/src/com/google/gwt/dev/js/DuplicateClinitRemover.java:286:0: warning: Line is longer than 100 characters (found 101). (com.puppycrawl.tools.checkstyle.checks.sizes.LineLengthCheck)

[checkstyle] reported by reviewdog 🐶 Line is longer than 100 characters (found 103). Raw Output: /home/runner/work/gwt/gwt/gwt/dev/core/src/com/google/gwt/dev/jjs/impl/GwtAstBuilder.java:3818:0: warning: Line is longer than 100 characters (found 103). (com.puppycrawl.tools.checkstyle.checks.sizes.LineLengthCheck)

[removal] Utility in com.google.gwt.util.tools has been deprecated and marked for removal

[strictfp] as of release 17, all floating-point expressions are evaluated strictly and 'strictfp' is not required

[removal] Double(double) in Double has been deprecated and marked for removal

[removal] Double(double) in Double has been deprecated and marked for removal

[removal] Double(double) in Double has been deprecated and marked for removal

[removal] Double(double) in Double has been deprecated and marked for removal

[removal] Double(double) in Double has been deprecated and marked for removal

[LongDoubleConversion] Conversion from long to double may lose precision; use an explicit cast to double if this was intentional

[CatchAndPrintStackTrace] Logging or rethrowing exceptions should usually be preferred to catching and calling printStackTrace